988142417 has 4 divisors (see below), whose sum is σ = 988376676. Its totient is φ = 987908160.

The previous prime is 988142383. The next prime is 988142447. The reversal of 988142417 is 714241889.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 714241889 = 20807 ⋅34327.

It can be written as a sum of positive squares in 2 ways, for example, as 686911681 + 301230736 = 26209^2 + 17356^2 .

It is a cyclic number.

It is not a de Polignac number, because 988142417 - 2⁸ = 988142161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988142447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110684 + ... + 119277.

It is an arithmetic number, because the mean of its divisors is an integer number (247094169).

Almost surely, 2^988142417 is an apocalyptic number.

It is an amenable number.

988142417 is a deficient number, since it is larger than the sum of its proper divisors (234259).

988142417 is a wasteful number, since it uses less digits than its factorization.

988142417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234258.

The product of its digits is 129024, while the sum is 44.

The square root of 988142417 is about 31434.7326535474. The cubic root of 988142417 is about 996.0317461239.

The spelling of 988142417 in words is "nine hundred eighty-eight million, one hundred forty-two thousand, four hundred seventeen".